PRVT-STORM-CTL-MIB

Description: Manages BATM Advanced Communication storm control thresholds for broadcast, multicast, and unknown unicast traffic suppression.

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PRVT-STORM-CTL-MIB is a BATM Advanced Communications (Telco Systems) vendor-specific MIB for T-Metro switches that manages storm control — the suppression of excessive broadcast, multicast, and unknown-unicast traffic on a switch port. It defines prvtStrmCtlPortTable, indexed by ifIndex, with prvtStrmCtlPortShutdown controlling whether storm control is active on a port, and prvtStrmCtlPortTrafficTable, indexed by ifIndex plus prvtStrmCtlPortTrafficType (all, unknown, multicast, or broadcast), exposing a configurable prvtStrmCtlPortTrafficThreshold in packets-per-second for each traffic type. A threshold set far above or below expected traffic levels can either let a broadcast storm degrade the switch fabric or falsely trigger storm-control action on legitimate bursty traffic, so confirming the configured thresholds match the intended traffic profile is part of routine port-health verification. It depends on the underlying IF-MIB ifIndex numbering and the switch's hardware storm-control enforcement engine, and this PRVT-STORM-CTL-MIB MIB is deployed on BATM/Telco Systems T-Metro carrier Ethernet switches.

An operator checks prvtStrmCtlPortTrafficThreshold for the broadcast traffic type on an access port carrying a known amount of legitimate broadcast traffic; a threshold configured lower than that legitimate traffic rate would cause storm control to needlessly suppress normal broadcasts on that port.

Manages storm control configuration and rate thresholds for network switches.